Modern Physics 7 Question 46
51. A nucleus at rest undergoes a decay emitting an
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Answer:
Correct Answer: 51.
Solution:
- (a) Given mass of
de-Broglie wavelength of
So, momentum of
From law of conservation of linear momentum, this should also be equal to the linear momentum of the daughter nucleus (in opposite direction).
Let
Substituting the values, we get
or
(b) Mass defect,
Therefore, mass of parent nucleus
Hence, mass of parent nucleus is
